Junos OS

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Exception Traffic example

  • 1.  Exception Traffic example

    Posted 08-19-2017 10:03

    Examples of EXCEPTION traffic:

     

    SCP traffic that enters one interface and exits another interface on local router: True/False.

    SCP traffic that is destined for router's loopback interface: True/False.

    SFTP traffic that enters one interface and is destined for a local physcial interface: True/False.

    SFTP trafffic that enters and exits the same interface on the local router: True/False.



  • 2.  RE: Exception Traffic example

    Posted 08-22-2017 21:20

    Hi,

     

    Please find answers inline:

     

    SCP traffic that enters one interface and exits another interface on local router:

    If it is transit traffic, it is not exception traffic

     

    SCP traffic that is destined for router's loopback interface: True/False.

    True

     

    SFTP traffic that enters one interface and is destined for a local physcial interface: True/False.

    True

     

    SFTP trafffic that enters and exits the same interface on the local router: True/False.

    True

     

    Hope this helps

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  • 3.  RE: Exception Traffic example

    Posted 05-31-2020 17:26

    Hello  ,

     

    I am little bit confused here. Can you please clarify if it would be transit or exception because as per concepts exception traffic is always destinationed to the local system as ping and trace to management interface.

    In that case below statement would be true or false?

     

    SCP traffic that enters one interface and exits another interface on local router



  • 4.  RE: Exception Traffic example

    Posted 05-31-2020 18:04

    "SCP traffic that enters one interface and exits another interface on local router"

     

    If the router is not the destination but a transit device then it is transit traffic. FALSE 



  • 5.  RE: Exception Traffic example

     
    Posted 05-31-2020 23:59

    By exception traffic, we mean any traffic that is handled by the RE/CPU instead of being hanfled by the hardware/PFE.

     

    Regarding your question for the SCP traffic destined to another end system with the Juniper router as a transit, it should be handled by the PFE and should not be an exception traffic, unless there is a need for the RE to process that traffic.

     

    BR,

    Vishal

     

     

    PS: Please accept my response as solution if it answers you query, kudos are appreciated too!